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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 458 · 40 questions
TalentJR

The trick (Double double): Double the number. Double the answer again. That is the number × 4.

NameDateTime takenScore ___ / 40
  1. 1.37 × 4 =
  2. 2.54 × 4 =
  3. 3.43 × 4 =
  4. 4.22 × 4 =
  5. 5.15 × 4 =
  6. 6.29 × 4 =
  7. 7.59 × 4 =
  8. 8.8 × 4 =
  9. 9.44 × 4 =
  10. 10.19 × 4 =
  11. 11.53 × 4 =
  12. 12.31 × 4 =
  13. 13.40 × 4 =
  14. 14.39 × 4 =
  15. 15.21 × 4 =
  16. 16.56 × 4 =
  17. 17.57 × 4 =
  18. 18.25 × 4 =
  19. 19.46 × 4 =
  20. 20.6 × 4 =
  21. 21.42 × 4 =
  22. 22.26 × 4 =
  23. 23.51 × 4 =
  24. 24.12 × 4 =
  25. 25.32 × 4 =
  26. 26.36 × 4 =
  27. 27.38 × 4 =
  28. 28.17 × 4 =
  29. 29.10 × 4 =
  30. 30.55 × 4 =
  31. 31.9 × 4 =
  32. 32.20 × 4 =
  33. 33.14 × 4 =
  34. 34.34 × 4 =
  35. 35.13 × 4 =
  36. 36.7 × 4 =
  37. 37.35 × 4 =
  38. 38.33 × 4 =
  39. 39.18 × 4 =
  40. 40.41 × 4 =

Answer key

  1. 148
  2. 216
  3. 172
  4. 88
  5. 60
  6. 116
  7. 236
  8. 32
  9. 176
  10. 76
  11. 212
  12. 124
  13. 160
  14. 156
  15. 84
  16. 224
  17. 228
  18. 100
  19. 184
  20. 24
  21. 168
  22. 104
  23. 204
  24. 48
  25. 128
  26. 144
  27. 152
  28. 68
  29. 40
  30. 220
  31. 36
  32. 80
  33. 56
  34. 136
  35. 52
  36. 28
  37. 140
  38. 132
  39. 72
  40. 164

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